55700697 has 16 divisors (see below), whose sum is σ = 80393600. Its totient is φ = 34100352.

The previous prime is 55700693. The next prime is 55700737. The reversal of 55700697 is 79600755.

It is not a de Polignac number, because 55700697 - 2² = 55700693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55700693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4173 + ... + 11349.

It is an arithmetic number, because the mean of its divisors is an integer number (5024600).

Almost surely, 2^55700697 is an apocalyptic number.

It is an amenable number.

55700697 is a deficient number, since it is larger than the sum of its proper divisors (24692903).

55700697 is a wasteful number, since it uses less digits than its factorization.

55700697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7392.

The product of its (nonzero) digits is 66150, while the sum is 39.

The square root of 55700697 is about 7463.2899581887. The cubic root of 55700697 is about 381.9034161859.

The spelling of 55700697 in words is "fifty-five million, seven hundred thousand, six hundred ninety-seven".